Archived

Avalanche Forecast

Dec 1st, 2011–Dec 2nd, 2011

Alpine

2: Moderate

The avalanche danger rating in the alpine will be moderate

Treeline

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Alpine

2: Moderate

The avalanche danger rating in the alpine will be moderate

Treeline

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Alpine

2: Moderate

The avalanche danger rating in the alpine will be moderate

Treeline

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Regions: Glacier.

Large areas of Glacier National Park are CLOSED for avalanche control using EXPLOSIVES. Daily or annual winter permits are required to access winter restricted areas. Access info at Rogers Pass Discovery Centre.

Avalanche Problems

Wind Slabs

Moderate to strong wind S-SW have created wind loading on to leeward terrain. This overlies wind slabs created earlier in the storm period. Use caution on ridge lines and lee slopes for isolated pockets of hard wind deposited snow.

Aspects: North, North East, East, South East.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3

Storm Slabs

80 cm of storm snow has slabbed up, and in many places has not yet released. Use conservative route selection in avalanche terrain that has not avalanched in the last few days.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely

Expected Size: 1 - 2